Box-like response of microring resonator filter by stacked double-ring geometry
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抄録
The Lorentzian-shape filter response of a microring resonator filter is not suitable to the practical use in WDM systems, because of the lack of pass band flatness, high cross talk, and the large wing in the stop band. Therefore, the tailoring of filter response shape is required to improve the performance. In this paper, the authors designed and demonstrated the box-like filter response of microring resonator filter by using the supermodes of stacked double microring resonators. The thicknesses of microrings and the separation between them were optimally designed to give the maximally flat response. A fine fabrication process was developed to achieve the deep and very smooth side wall. The shape factor, which is defined by the ratio of —1dB bandwidth to -10dB bandwidth, was successfully improved by three factors from 0.17 of Lorentzian shape to 0.51.
収録刊行物
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- IEICE transactions on electronics
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IEICE transactions on electronics E85-C (4), 1018-1024, 2002-04-04
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詳細情報 詳細情報について
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- CRID
- 1050282812715866880
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- NII論文ID
- 110003220991
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- NII書誌ID
- AA10826283
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- ISSN
- 09168524
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- Web Site
- http://hdl.handle.net/10131/7955
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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- IRDB
- CiNii Articles